<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<!--引入vue-->
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<div id="app">
  <h2>{{message}}}</h2>
  <h2>{{firstName}}</h2>
  <h2>{{lastName}}</h2>
  <h2>{{firstName}}{{lastName}}</h2>
  <h2>{{age+"--"+pet}}</h2>
</div>
<script>
  const app = new Vue({
    el: "#app",
    data:{
      message:"Hello zk I am Vue !",
      firstName:"zhuang",
      lastName:"kang",
      age:"20",
      pet:"dog"
    }
  })
</script>
</body>
</html>
